GB777750A - Electric circuit-breaker control device - Google Patents

Electric circuit-breaker control device

Info

Publication number
GB777750A
GB777750A GB1113/55A GB111355A GB777750A GB 777750 A GB777750 A GB 777750A GB 1113/55 A GB1113/55 A GB 1113/55A GB 111355 A GB111355 A GB 111355A GB 777750 A GB777750 A GB 777750A
Authority
GB
United Kingdom
Prior art keywords
oil
contact
container
spring
open
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1113/55A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB777750A publication Critical patent/GB777750A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
    • H01H33/34—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator hydraulic

Landscapes

  • Switches Operated By Changes In Physical Conditions (AREA)
  • Circuit Breakers (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

777,750. Oil-break switches; actuation of switches. GRATZMULLER, J. L. Jan. 13, 1955 [Jan. 15, 1954], No.. 1113/55. Class 38(5) . The live part of a suspended circuitbreaker having a movable contact 8 actuated by oil through a spring-biased integral piston 50. is insulated from the earthed control point by the insulating oil feed pipe 13. part of which is contained in an instilator 14, and the column of oil therein. The oil feed from the oleo-pneumatic accumulator 12 is controlled by a three-way cock 15 by a contact-making and a contactbreaking electromagnet 16. 17, respectively; Fig. 3. oil being evacuated into a container 18 to open the breaker, and a manometer 19 indicating the position of the breaker contact 8. In another embodiment (Fig. 2, not shown) oil is evacuated into an intermediate tank open to atmosphere, the oil being then returned to the container by a separate insulating pipe, while in yet another embodiment (Fig. 3) oil is returned from an intermediate tank 22 to the container 18 through an annular passage 24 between feed pipe 13 and insulator 14 and pipes 26, 27, a valve having a spring- pressed diaphragm 34 and open to atmosphere at 32 ensuring a sufficient level of oil in passage 24. An indication of the position of the movable contact is given by two lamps 42, 43, the circuit of the former being completed by contact 39 carried by a spring-biased piston 36 responsive to the oil pressure in duct 13 when the pressure is higher than-that required for the contact-making stroke of piston 50, and the circuit of lamp 43 being completed when the pressure is lower. Specification 755,096 is referred to.
GB1113/55A 1954-01-15 1955-01-13 Electric circuit-breaker control device Expired GB777750A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1086785X 1954-01-15

Publications (1)

Publication Number Publication Date
GB777750A true GB777750A (en) 1957-06-26

Family

ID=9612946

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1113/55A Expired GB777750A (en) 1954-01-15 1955-01-13 Electric circuit-breaker control device

Country Status (4)

Country Link
US (1) US2900469A (en)
DE (1) DE1086785B (en)
FR (1) FR1098233A (en)
GB (1) GB777750A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3150245A (en) * 1957-09-13 1964-09-22 Westinghouse Electric Corp Liquefied gas circuit interrupters
FR2115506A5 (en) * 1970-11-23 1972-07-07 Gratzmuller Jean Louis

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1225901A (en) * 1914-06-10 1917-05-15 Ernst Weissberg High-tension switch.
DE370088C (en) * 1921-07-30 1923-02-27 Jaeger Geb Rotary switch with columnar base
US1530120A (en) * 1922-10-04 1925-03-17 John A Emery Circuit breaker
US1728829A (en) * 1925-04-30 1929-09-17 Gen Electric Electric switch
US1830672A (en) * 1929-01-30 1931-11-03 Thomas J Niutta Automatic circuit breaker for boilers
GB398544A (en) * 1932-03-17 1933-09-18 William Train Gray Improvements in or relating to electromagnetically-controlled pneumatically-operated electric switches or contactors
US2078784A (en) * 1936-04-30 1937-04-27 Gen Electric Electric circuit breaker
NL50549C (en) * 1937-11-10
BE431384A (en) * 1937-11-30
US2239554A (en) * 1938-01-29 1941-04-22 Westinghouse Electric & Mfg Co Circuit interrupter
GB515151A (en) * 1938-05-25 1939-11-28 Allen West & Co Ltd Improvements in or relating to pneumatically or hydraulically operated electric contactors
US2231708A (en) * 1938-08-22 1941-02-11 Westinghouse Electric & Mfg Co Circuit breaker
CH215216A (en) * 1938-11-07 1941-06-15 Hermes Patentverwertungs Gmbh Switch drive with insulating fluid rods on multiphase high-voltage switches.
US2308261A (en) * 1939-12-06 1943-01-12 Gen Electric Fluid pressure control system
US2464237A (en) * 1943-05-24 1949-03-15 Allis Chalmers Mfg Co Fluid pressure actuated switch
US2430128A (en) * 1944-03-18 1947-11-04 Allis Chalmers Mfg Co Fluid operated switch control
US2578204A (en) * 1948-05-14 1951-12-11 Allis Chalmers Mfg Co Dumping valve for expediting reverse movements of fluid motors
US2765378A (en) * 1953-05-26 1956-10-02 Allis Chalmers Mfg Co Circuit breaker with hydraulic motor controlled by a hydraulically biased valve

Also Published As

Publication number Publication date
US2900469A (en) 1959-08-18
DE1086785B (en) 1960-08-11
FR1098233A (en) 1955-07-20

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